2026 05 Storm Water Management Report rcd 5 6 2026

2026-04 Proposed & Existing CoNOAA 24-hr D 100-Year-Projected Rainfall=11.52", P2=4.09" 2026-04 Proposed & Existing CoNOAA 24-hr D 100-Year-Projected Rainfall=11.52", P2=4.09" Prepared by Dynamic Engineering Printed 5/5/2026 Prepared by Dynamic Engineering Printed 5/5/2026 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 89 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 90 Pond 2P: BIO BASIN Summary for Link 4L: POI #1 Hydrograph Inflow Area = 0.563 ac, 75.31% Impervious, Inflow Depth = 10.53" for 100-Year-Projected event 1.62 cfs Inflow Inflow = 5.59 cfs @ 12.11 hrs, Volume= 0.494 af Primary Primary = 5.59 cfs @ 12.11 hrs, Volume= 0.494 af, Atten= 0%, Lag= 0.0 min Inflow Area=0.146 ac Routed to nonexistent node 18L Peak Elev=623.69' Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.001 hrs

Peak Elev=623.69' Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.001 hrs Storage=939 cf Link 4L: POI #1 1.07 cfs Hydrograph Flow (cfs) 1 Inflow 5.59 cfs Primary 6 5.59 cfs Inflow Area=0.563 ac 5 4 Flow (cfs) 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 3

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 3 Time (hours) 2 1 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours)